CVE-2020-36208 Data races in conquer-once
A race condition in the conquer-once Rust crate allows thread crossing for non-Send types, potentially leading to memory corruption and code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-36208?
CVE-2020-36208 is a high-severity vulnerability in n/a, published on 22 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in the conquer-once crate before 0.3.2 for Rust. Thread crossing can occur for a non-Send but Sync type, leading to memory corruption.
Which versions are affected by CVE-2020-36208?
3 open source packages ship an affected version, including conquer-once. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
conquer-once crates.io | All versions | 0.3.2 |
conquer-once crates.io | All versions | 0.3.2 |
conquer-once crates.io | From 0.0.0-0 | 0.3.2 |
Products include Conquer-Once Project Conquer-Once.
How do I fix CVE-2020-36208?
Upgrade conquer-once to 0.3.2 or later.
Is CVE-2020-36208 being exploited?
There is no known exploitation of CVE-2020-36208 in the wild and no public exploit code.
Sources
Also known as GHSA-3jc5-5hc5-33gj, RUSTSEC-2020-0101.